doc: update README.md

README.md

@@ -486,7 +486,7 @@ We are happy to help, please contact us or create an issue.
 
 - [Twitter: @getAlby](https://twitter.com/getAlby)
 - [Telegram Community Chat](https://t.me/getAlby)
-- e-mail to support at getalby.com
+- e-mail to support@getalby.com
 - [bitcoin.design](https://bitcoin.design/) Slack community [#lightning-browser-extension](https://bitcoindesign.slack.com/archives/C02591ADXM2)
 - Read the [Alby developer guide](https://guides.getalby.com/developer-guide) to better understand how Alby packages and APIs can be used to power your app.